Liam Aiken

as Klaus Baudelaire

as Peter Sullivan

as Ronnie Ram Tech (voice)

as Rolo

as Ben Harrison

as Abner

as Tory Quinlann

as Johnnie Pappas

as Robbie Bishop

as Nathan

as Owen Baker

as Mr Will

as Ned

as Tyler

as Ned Grim

as 7-Year-Old Emanuele

as Son

as Bryan

as Ned Rifle

as Milo

as Kid

as Francis

as Eddie

as Reed

as Sinclair

as Josh Green

as J.R.

as Emmett Wilder

as Joe (kid)

as Hugo

as Andy Monrovia

as Himself

as Ethan

as Hezekiah

as Charlie Masters